Rim spreader



M. KOHL RIM SPREADER Nov. 10, 1925- Filed Sept. 17, 1923 Patented Nov. 10, 1925.

UNITED STATES MICHAEL KOHL, OF NORTH MILWAUKEE, WISCONSIN.

RIM SPREADER.

Application filed September 17, 1923. Serial No. 663,175.

To all whom it may confirm Be it known that l, lllngirtrn lionii, a citizen of the United States, and resident of North Milwaukee, in the county of Milwaukee and State oi" VYisconsin, have invented certain new and useful lmprovemenls in Him Spreaders; and 1 do hereby declare that the following is a tall, clear, and exact description thereof.

This invention relates to rim spreaders. ln rinfspreaders as heretol'ore constructed, ditliculty has been experienced due to the slipping of the parts along the rim and also due to the elaborate nature of the device and the relatively extensive operations required to secure the correct functioning of such devices.

This invention is designed to overcome the above noted defects, and objects of such invention are to provide a rim spreader which may be readily clamped to any type. oi rim, which is cheaply constructed, which is compact and which is provided with means or pressing the nipple out of the way when the device is used with certain types of rims.

Embodiments of the invention are shown in the accompanying drawings, in which Figure 1 is a side elevation partly in section of one part of the rim spreader showing 30 the rim in its expanded position.

Figure 2 is a corrcsp:Hiding view of a.

slightly modified torn! sllhc rim spreader in its contracted po Figure is a large transverse se tional view through the device.

The rim spreader is provided with lamping means at each end there-wt which are of substantially similar construction. Theretore one only of such clamping means need be described. This clamping means, as illustrated in an enlarged form, is shown in Fig ure 3, from which it will be seen that a pair of curved jaws 1 and 2 are provided, and that the lower portion of these jaws, as indicated at 3 and l are held in any suitable manner in sliding overlapping relation. For instance, plates 5 may be slotted and may guide the members 3 and 4. A set screw 6 may be provided which is passed through the plates and screwed into a threaded aperture in one of the members, as for instance, the member a. A spindle 7 is provided with reverscly threaded end 8 and 9 which are screwed through the jaws l and 2. This spindle may have formed integrally therewith a crank 10 to permit its ready rotation. The member thus far described is the left hand clamping member shown in Figures 1 and 2.

The right hand clamping member is of substantially similar construction except that the plates 5' differ vfrom the plates 5, such latter plates being provided with depending ears between which the portion 11 of the toggle link mechanism is received. The other portion of the toggle link mech anism comprises a pair of levers 12 whose ends are pivotally joined to the plates 5 upon opposite sides thereof and to the portion 11 oi the first mentioned link. It is to be noted that the link 11 is provided with an extension 13 which is arranged angularly to the operative portion 11 thereof and forms a manipulating angularly arranged handle.

In using the device the clamping aws are forced into engagement with opposed sections 14 and 15 of the rim, as shown in Figure 1. Thereafter, the operator presses downwar lly upon the handle 13 and rocks it into the position shown in Figure 2. In this position, it will be seen that the section 15 of the rim has been forced upwardly and caused to ride over the section 14- thereof. It may happen in certain types of rims that the filling nipple for the tire ex tends downwardly through the section 15 adjacent the end thereof.

In this case a piece of strap iron 16 is pivotally mounted upon the spindle 7 of the right hand clamping member and its free end is adapted to be positioned between the members H and 1.5 at the initiation of their sliding motion. This causes the flap 16 to be rocked upwardly thus pr sing the filling nipple upwardly and protecting it from damage from the adjacent end of the section 14 of the rim.

It is to be particularly noted that the device will not slip along the rim but may be rigidly clamped thereto and that at all times during the manipulation of the rim spreader, the movement of the ends ot the rim are under complete control.

It is further to be noted that the location of the handle 13 is such that the operator may, with the greatest ease manipulate the device.

It will be seen that a rim spreader has been provided which may be constructed at a minimum expense, which is effective in operation and Which is of substantial and rugged construction.

Although a few forms of the invention have been described in considerable detail, it is to be understood that the invention may be variously embodied and is, thereforeto be limited only as claimed.

I claim:

1. In a rim spreading device, the combination of pairs of jaws adapted to engage opposite sides of a rim, spindles having reversely threaded ends screwed into said jaws, cranks for rotating said spindle, a plate associated with each pair of jaws, said plates being folded and cut away to receive said jaws, means carried by each of said plates for locking the plates to one of each of said jaws, a toggle lin'k element pivoted to each of said plates and pivoted to each other intermediate the ends of one of said elements, said last mentioned element having a manipulating extension projecting outwardly at an angle to the remaining por tion of said element.

2. In a rim spreading device, the combination of a pair of adapted to engage opposite sides of a rim, spindles having reversely threaded ends screwed into said jaws, means for rotating said spindles, a plate associated with each pair of said jaws, said plates being folded and cut away to receive said jaws, means carried by each of said plates for locking said plates to said jaws, a toggle lever mechanism having its ends pivoted to said jaws and having one of its elements extended to form a separate handle, and a flap pivoted to one of said spindles and adapted to be inserted between the free ends of said rim prior to the expansion of said rim.

In testimony that I claim the foregoing I have hereunto set my hand at Milwaukee, in the county of Milwaukee and State of Wiscousin.

MICHAEL KOHIi. 

